<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .container {
            width: 200px;
            height: 200px;
            background-color: red;
            position: relative;
            left: 100px;
            top: 50px;
            /* 可以使用相对定位来调整元素的位置:left top right bottom四个标签来设置元素的位置 */
        }
    </style>
</head>
<body>
    <div class="container"></div>
</body>
</html>